Adjustable chair



Feb. 12, 1929., v 1,701,922

, A. w. HAWKINS ADJUSTABLE CHAIR Filed Feb- 27, 1925 4 Sheets-Sheet l @Wigman-NIM NIH! WMHPT 1 a f imm] I Feb. 12, 1929. 1,701,922

A. W. HAWKFNS ADJUSTABLE CHAIR Filed Feb. 27, 1925 4 Sheets-Sheet 2 Feb. 12, 1929.. Y 1,701,922

A. W. HANKENS ADJUSTABLE CHAIR Filed Feb- 27, 1925 4 Sheets-Sheet 5 Feb. 12, 1929. 1,701,922

' A. w. HAwKnNs ADJUSTABLE CHAIR Filed Feb. 27, 1925 4 Sheets-Sheet 4 [faz/mier M iwf/ff ma 57 f/ff.

Patented Feb. 12, 1929.

Lmaar yFiltri.

ARTHUR W'.` HAVKINS, OF MUSKEGGN, MCHGAT, ASSGNR TO CHICAGO RAIL'WAY EQUIPMENT COMPANY, F CHICGO, ILL'L'OIS, A CORPORATN 0F ILLINOIS.

v ADJUSTABLE CHAIR.

Application filed February This invention relates to new and usetul improvements in adjustable Chaire or supporte 'tor bralre beams, the object beingr to provide a eliair member ezrrierl by a brake beam. part and adjustable in vertical plane to bring; itin proper operating enneigement with a eorrespoiuling track member or eu't'etv bar allrecl to a ear truck part.

Further obj ecte of the invention are te proville a chair member consisting; ol two elemente attaehe-zl to each other, one ot Said elements operatively engaging a brake benin part and the other haviilfg,` engagement with a support on eartruelr7 said elementev being` adjustable in relation to each other in order to `poeitivelj7 vary in vertical plane the points ot engagement et said elements with the reepee i 've parte..

Still turth er objects ot' Vthe invention are to provide a chair member tor brake beams, eaiil chair member being provided with an element positively adjustable relative thereto Vin vertical plane, and means for eecuringfsaitl element in ite adjusted position.

With these and other objects in View, my

" invention consists in Certain novel features ot Construction and arrangement ot parti-s7 hereinafter more tully ileseribefl and claimed, and illustrated inthe accompanying drawings, in

which j Figure l is a cross; Sectional View through a brake beam :unl a ver truck part unil showineT the ebair in opera ive engagement there with.

lfigure l in a 'vertical einen Section througjh` the ehuir and showing' the same attaeheil to a bral-:e beam part.

lligure is; a :side elevational vieu' et the Chair. Figure 4; is a horizontal Cross Seilen taken on line 4-4t ot lFigure 2.

Figure 5 ie a fragmental Sectional vie-fw oi? a iumliliecl torni ot Chair.

Figure 6 is an end elevational vieu' of an- 15 other modified 'form oit chair.

Figure 7 is a eicleV elevational vie-W ot same. nire 8 is a horizontal cross Section taken on lines; 8 8 'oit' Figure 6.

Figure 9 is a vertical cross Section tliroun'h ay bral-:e beam anal a car truck part and showing; another modified form of a Cliair aseooiated therewith.

Figure l0 is a vertical eroeeI section taken through tlie form of Chair shown in Figure 9e 27, 1925. eener uo. 11,978.

Figure ll is a eide elevational view partijV Figure l5 in a eide elevational view et another torni et afl ustable Chair.

lfigure 16 irl; un enfl elevational view ot Same.

Aliigure 16a ie a sectional detail vieiv of a mofliiiefl term of afljustabe chair. Y

Figure 117 is a Side elevational vieni ot another form ot elniirl Figure 18 is a top pla-n vieuv ot the chair sliown in Figure 17.

Figure 19 ist a perspective detail view ot the slioe member used in said chair, f

Figure 2O` is a perspeeti Y, detail vieuvv of' a locking; member used in eonjuiietion Avit-li Said shoe member. Figure 2l is a siecle elevational view of another-modified form oit chair.

o lligjuro 22 ina verticalV cross Section taken on lineev 2.2-22 ot Figure 2l'.

Figure Q3 a Sicle elevational view of an-l other modified torm et brake beam chair.

Figure 24. is Seetional view taken on lines 24-Q4 of Figure Q3.

lllirure Q5 ie a detail View oi' a moiliied form et shoe mel'i'iber. j

Figure l'alioive anotlnu" mmlitierl 'torni ot chair applied to a brake beam strut member.

lFigari-3 27 an enlarged Sectional view ot same. Y 1

lli/nire 28 is a ilront elevational View, and 1. bigure 29 is a top plan view ot Same. lt has been found in practice that there is a certain amount otvariation in the nulivnlual truck assemblies which necesaitates'Y The eliafir consists of two pieces, one otV gageinent.

which is clamped to a brake beam part and4 the other, which'engages the support or Ytrack bar, has a fixed engagement with the firstl piece and fis adjustable relative thereto to vary the distance between the p oints ot eri- V Vgagement ot said chair with the brake bea-in part and the car truclr part or safety support.

in the present instance a spring planlr, 11 indicates the compression member and 12 the tension member of a'bralie beam, and 14 is a track or support bar hized to said car truck part and underlying said brake beam to form an auxiliary support therefor.

' chair l5 is carried by a' brake beam part, and y restson track lil with whichV Ait has sliding en- Y This chair Acomprises two elements, a Vclamp element 16 and a shoe inem- Gl'amp member 16 has Va seat 1S for receiving` the Ybialre beam part 12and is provided with ears or extensionsv such as the tension member 12,

` *i ber or plunger '17.

f 19 which extend past said member 12 and are clamped together to secure said chair in position by a nut and bolt :fastening 20.

Depending from clamp member 16 and formed integral therewith is a socket portion 21 having formed therein a vertically dis-v posedV socket 21a in which is disposed the shank portion 17UL of shoeelemeiit 17. One side wall ot socket member 21 is provided with a slot 22 terminating in outwardly and vertically disposedgfianges 21b which are formed integral with ksaid side wall.` An ear or extension 17" is :termed integral with shank portion 17ZL and projects laterally therefrom and'occupies slot 22. Flanges 2lb Y are provided with a plurality ot coinciding apertures 28 in which is adapted to be seated a Cotter pin orsimilar locking device v24.

`Extension 17b is provided Ywith an aperture which is adapted to receive Cotter pin 24, thereby locking theshoe member 17 to the clamp member 16. Apertures 23 are arranged so Vas to provide a suitable range ot adjustment for vthe shoe member 17 and member 24 whenseated'in apertures 23 and the` aperture 25 positively secures the shoe member in its adjusted position in member 16 so that the two chair elements possess the same rigidity and strength as a unitary structure.

In adjusting the shoe member 17, the same is moved outwardly or inwardly as may be desired in socket 2l and the aperture 25is Y brought into alignment with the nearest pair of apertures 23, whereupon member 215i' is inserted therethrough and secures said shoe member to the upper member 16.

In the forni shown in Figure 5, the shank portion17 C ofthe shoevmember is provided in one side with aseries of ratch t teeth 25 which are adapted to vbe engaged by the free end of a spring member 26, the opposite endA otwliich is anchored vin the socket portion 21. Spring member 26 holds the shank portion 17c against inward or upward movement Land locks shoe member in adjusted position whilejthe track member '14. on which said shoe member restsprevents the withdrawal thereoi from the 'clamp member'16.

ln 4the form shown in Figures 6 to 8, aY

clamp member 27 is clampedfin positionby suitable fastening devices 28 engaging extenwith lateral extensions or lugs 30 having vertically. disposed openings BGL-which lare traversed by upwardly extending members 31, 'the lowerends oi which are formed inte-s gral with a shoe`32. lli-achymeinber 31 is providedwith a vertically disposed row of apertures and eXteiisionsQQ, which entend asiiitable distance above lugs 30, Yare pro- Vvided 'with aligned apertures 34 which .arey adapted to coincide with any pair of ap-V ertures 33 so that a cotter pin or similar member 85' can berinserted through said al ertures and hold the shoe member 32 in fixed relation with Yclamp member 27. To

adjust the chair, all that is necessary is tol remo-ve member 35 and movemember 32and l extensions 31 in vertical plane so to bring the brake beam part in proper elevatioiilwith respect to the car truck part whereupon inember 35 is inserted through the proper apertures y 83 of the shoe member which are brought into alignment with apertures 34E ot the clamp membeiz Y y n ln theYprecedingl forms just described, the shoe member is capable oi' adjustment without disturbing` the tastening'ot the clamp member on the brake beam part, and means .75 sions 29 and said clamp member is provided independent oif the clamping means are used` to tiXthe adjusted-chair elements to each other.

Y In the form shown in Figures 9 to 1l, a clamp member 36 is secured in position on the brel-:e beam partA by suitable fastening devices consifitiiig` ot a bolt 37 and nuts 256. A shoe 39 is carried by the lower end loi one ot pair ot vertically disposed plates or extensions 40, the lower end ot the opposite plate being hinged to the first plate, as

indicated at il. rllhese plates are provided with vertically and centrally disposed slots l2 for accommodatingbolt 37 which passes therethrough. The opposed inner faces of plates 40 are provided Vwith a series of hori- Zontally disposed coinciding grooves cned so as to lock the adi estable chair element to the clamp member 3S. i

The l'ori shown iii-Figures l2 and i3 similar to the form shown in Figure (l in that a clamp member' 4ta provi Aled with side lugs l5 having vertically disposed openings there- -inl through which pass the upwardly presented parallel members ot a slioe lli'. However, only one securingl device is used to clamp member in position on the bralze beam part and tizi shoe member 37 in its adjusted position. rllhis fastening' device coinprises a bolt t8 which passes'through the apertures :toi-med in extensions lo of' the shoe i'uemlier and the apertures `formed in extern tions del@ oit the clamp member' and which re ceives a` nut 48 and a loeli nut fill".

ln the -form shown iu Figure ll. a shoe niiember 49 is provided withY upward eatensions el a having' two vertically lisposed rows ot apertures 419% the apertures ot one row being arranged intermediate the apertures ot the other rowor in staggered relation with each other so as to permit greater range of vertical adj ustment.

The form illustrated in Figures l and 'i6 comp-rises a shoe member 50 having upward `parallel extensions 5l which entendr upwardly trom each side ot tension member l2. riaid iiitensions 51 are provided with coinciding,` horizontally disposed slots 5l which are adapted to receive the horizontally disposed legs 52 ot' a lJ-shaped member which are disposed above and below tension member l2. The. ends ot portions 52 extend past the respective portion 5l, and are apertured to receive a Cotter pin or similar locking' device 5d so as to prevent displacement ot member ln this manner the shoe member 50 supports the brake beam part l2 and is held in engagement therewith. To etiect vertical adjustment oit the shoe member 50, end portion 5l is provided with a horizontal extension 55, the end or' which terminates against the web portion olf compression member ll. Member F5 is apertured and passing;` through this aperture is a bolt :"il the ends ot which are seated in the ends ol a il-shaped member 5T which is carried by coiupression member lll. Threaded on bolt 56 and engaging the opposite faces ot uien'iber are nuts Thus by turning nuts 5S in the proper direction7 shoe 50 can be adjusted in vertical plane.

ln the ttorm shown in lligrure 1G, a spring` QG is provided with a pawl 26" which extends through socket 2l and engages the teeth of shank 17. The end oil' this spring is slightly turned outwardly as indicated at 26 whereby said spring' cau be manually engaeedto move pawl. 26" out ot engagement with said teeth.

The torni shown in Figures 17 to 2t) com* prises a horizontally disposed member 59 clamped at one end to the compression niember ll and reinforced at the other end by being rebent as shown at 6G. llhe extremity of the relient portion is formed to engage tension memberviQ and clamp it to member 59. The reinforced or double portion 60 is provided with `an aperture lil through which passes a shank portion 62 ot a shoe member eil. @ne edge oit sha-ink portion (S2 is formed with a pluraliy ot horizontally disposed notches 52a which are spaced at regular interif'als and torni tor a plate which is secured in position on double portion 60 by bolts or rivets (S5 'engaging apertures G/l. This plate has one edge 6% projecting' in the plane oi. openiup` (Slifer engaging one ol' the notches 62d. Y Y

ln the torni sho fn iii Figures 2l and a member lio is secured at one end to coiiipression member ll and has its opposite end relient to torina seat (Soll tifoireceiving` the tension member l2. l` le rebent end lies dat on member (5G and a. vertically disposed aperture lli' receives shanl: (i8 olil shoe member (if). 'lihis Shank is provided with a screw thread and screwed thereon is a pair ot nuts TO, one above and one below the portions of inember (3o, whereby by turning said nuts in proper direction, shoemeinber 69 may be raised or lowered as desired. it washer 'il is preferably interposed between the upper nut and member tit?. Shank 55S is also provided with a plurality of apertures 72 vertically disposed therein tor receiving a cotter pin 73.

ln the form shown in Figures Q3 and 2li, a member 7e is secured to compression member "il and has one end bifurcated to form horizontally disposed spaced portions 75 arranged above and below the tension member l2. A

shoe member 76 is provided with a pair ot' ATG may be ailiusted in vertical plane by seating portions 75 in corresponding openings 78. A member T) seated in the proieeting; endsI ot portions T5 and prevents the withdrawal ot said portions lroui eiip'aizfeuieut with legs f-rln Figure 25? a shoe member 8O is shown, but instead ot beine' formed with an integral shoe, a roller 8l is journaled in the lower end. of said member to i'orm an autiriction bearing. l

Figures 2G to 29 show the chair as applied to a. brake beam strut member. This strut member Sil is provided with biturcated eX- tensions 84 which carry a horizontally disposed piii Se. il chair piece 86 is mounted on said pin and terminates 1n a vertically disposed plate 8'? provided with a vertically disposedrow ol apertures 88 'for receivinp` a cotter pin 89 which is carried by a sleeve 90 ol' a shoe member 91. Sleeve $0 embraces the shank or plate 87 and is adjustable thereon so as to space said shoe member in vertical plane the proper distance relative to the brake part 82'. Y The Vtwo chair pieces are fixed to each otl'ierby Cotter pin 89. To prevent rotation orvrocling movement of piece Sabout the axisV of pin 85 said pieceis provided with anextensionV or enlargement'86?L which bears` against said strut and holds Vsaid piece `against displacement.

A chan' oi my improved.construction 1s Vreadilyadjustable invertical plane so to obtain proper correlation the'bralre beam with the parts associated tlierewithand is positively held in adiusted position' in order to iix and maintain the chair in its adjusted position.

.llllhile l have shown and described various forms of the chair constructed in accord ance with my invention ,Y still other foi-nis and inodil'ications `can be designed without departing -troni the scope or my invention.

l claim l.. ln adjustable third or fourth point supy port chair for a brake bean-i, a rigid ineniber adapted to be fixed to a brake beam, and havingr a Vertical recess with an opening in its side, there being a laterally extending perforated flange adjacent to said opening, a rigidv member adapted to slide in said recess and f having a laterally eXtendinO perforated ear,

and an element for insertion through said ear and iiange to Ahold 'said members in desired `relation. i

2. In adjustable tliirdror fourth point support chair for a brake beain, a rigid niernber with a downwardly facing socket and clamp y v lifeless jaws above the saine, a rigid-element slidably 'fitting in saidy socket, and Cooperating means for holding; said ineinber and element `in desired relation; Y

8. libraire. beam chair comprising sepiarately formed rieid elenients, Vieans'ltor rigidly securing one'etsaid eleinentsto a brake beani, said elements lha a plurality of interloelring partsii'er positi'vely and adjustably securing said elements toeach other. i4. jbrake bean'i cha-1r comprising arigid element, aidevice for tixedly securingthe saine to abralie beam, another ngi d element adapted to slidn' Y qi 15, n' f f u l {fx/lli' 1 "Q am means or Jusdniy and, niet seein ingsaid elements to each other, said means Y including a pluralitj-,f of arranged at difsaid brake beam, and interengaging parts on said chair elen'ients, the parts on at least one of said elements being arrangedin series at Vdiliqerent levels for selectiveengagement with the partei' parts on lthe. other of said eleinents to Vary the heightat which said chair supports said beainfroin said arm.

ln testimony whereof l hereunto my signature this 20th day of February, 1,925.

, ARTHUR TN. HAlVKNS.

y engage a suppert arm,Y

Vso

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